to completely wipe the drive and reinstall the system from scratch. Some limited use software will leave hidden records of its having been installed. I suspect the methods used aren't for public knowledge and anyone here who knows how would be breaking forum rules to let such be known.
I download a free trial for 1 hr of play to see if I want to buy a game...after the one..the ones I do not want..how can I make sure to delete all traces of the game from my pc?????